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0.5
0.3
0.2
0
0 0.5
P
O
− Output Power − W
0.1 0.4
V
DD
= 3.3 V
0.4
R
L
= 8 Ω
R
L
= 16 Ω
0.1
0.2 0.3
P
D
− Power Dissipation − W
160
40
20
0
0 0.25 1.50.5 0.75 1
− Free-Air Temperature −
P
O
− Maximum Output Power − W
1.25
C
°
T
A
80
60
120
100
140
R
L
= 16 Ω
R
L
= 8 Ω
− Power Output − W
4
1.4
0.8
0.4
0
8 20 36
Load Resistance − Ω
12 16 24 28 32
1
0.6
0.2
V
DD
= 5 V
V
DD
= 3.3 V
P
O
A
V
= −2 V/V
f = 1 kHz
C
B
= 0.1 µF
THD+N ≤ 1%
1.2
4840 44
− Power Output − W
3
1.75
1
0.5
0
3.5 5
Supply Voltage − V
4 4.5 5.5
1.25
0.75
0.25
P
O
1.5
A
V
= −2 V/V
f = 1 kHz
C
B
= 0.1 µF
THD+N ≤ 1%
2.5
2
R
L
= 8 Ω
R
L
= 4 Ω
R
L
= 16 Ω
TPA4861
SLOS163C – SEPTEMBER 1996 – REVISED JUNE 2004
POWER DISSIPATION MAXIMUM OUTPUT POWER
vs vs
OUTPUT POWER FREE-AIR TEMPERATURE
Figure 27. Figure 28.
OUTPUT POWER OUTPUT POWER
vs vs
LOAD RESISTANCE SUPPLY VOLTAGE
Figure 29. Figure 30.
11